n.罐；筒；霰弹筒；防毒面具的滤毒罐
She restored the tea canister to its place. 她把茶叶罐放回原处。
The flame was carried in a special metal canister. 火舌被放置在一个特殊的金属罐中。
My fingertips could barely touch the film canister. 我的手指勉强能触及那个胶卷筒。
